As you said, he probably underacheived defensively in his first season. But that was his first experience as head coach, and they were transferring from Mitchell's system. Anyways, we weren't that great defensively that year (good defenders that come to mind are O'Neal-later Marion, Parker, maybe Bosh).

The other seasons, we were just simply terrible defensively. We had little defence last season, and not much improvement in terms of personnel this year.